shrub

Purple Passion Rhododendron

The Story

Plant Bio

A large-leafed evergreen rhododendron that forms a dense, mounding shrub. It is valued for its large trusses of spectacular flowers and handsome foliage.

'Purple Passion' is noted for its stunning, vibrant, deep purple flowers with a contrasting dark blotch on the upper petal. The large, dome-shaped trusses create a dramatic floral display.

Uses & Benefits:

The large trusses of vibrant purple flowers provide a massive, dramatic color impact in the spring landscape. The bold, evergreen foliage adds year-round structure and texture.

Can be used to create informal screens or hedges in shaded areas, defining garden spaces and providing a beautiful backdrop for other plantings.

The flowers are a valuable nectar source for early-season pollinators, including bees, and are known to attract hummingbirds. The dense structure provides cover for birds.

Essentials

At a Glance

Plant Type

Shrub

Height

72 inches

Width

72 inches

Light

Partial Sun

Zones

5, 6, 7, 8

Water

Moderate

Humidity

Moderate to high

Lifespan

Long-lived

Native To

Hybrid

Toxicity

All parts are toxic if ingested

Bloom period

Mid-spring – Late spring

In flower about 2 months of the year

Planting

How to Grow

Choose a site with dappled sunlight and protection from harsh winds.
Ensure soil is acidic, rich in organic matter, and well-drained.
Dig a shallow, wide hole, no deeper than the root ball.
Set the plant high, with the root flare at or slightly above soil level.
Backfill with amended soil and water well.
Mulch with 2-3 inches of pine bark or needles.

Pro Tip

Deadhead spent blooms carefully, snapping them off at the base, to direct energy into next year's growth instead of seed production.

Keep It Thriving

Care Guide

Do

Water deeply and regularly, especially during dry periods.
Maintain a consistent layer of mulch over the shallow root system.
Test soil pH and keep it in the 4.5 to 6.0 range.

Don't

Do not plant in heavy clay or waterlogged soil.
Avoid using broadleaf weed killers near rhododendrons.
Don't cultivate the soil around the base, as roots are very shallow.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Fertilize
Mulch
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Bold flowering specimenFoundation planting for shadeWoodland garden anchor

Companion Plants

Kalmia latifolia Pieris japonicaFerns Hosta Astilbe

Multiply

Propagation Methods

Good to Know

Common Questions

Purple Passion Rhododendron questions

What zones can Purple Passion Rhododendron grow in?

Purple Passion Rhododendron is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Purple Passion Rhododendron deer resistant?

Yes — Purple Passion Rhododendron is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Purple Passion Rhododendron bloom?

Purple Passion Rhododendron typically blooms in mid-spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Purple Passion Rhododendron need full sun?

Purple Passion Rhododendron does best in part shade.